MESON Chess Problem Database

Problem Display
PID: 133200 (B2n1N2/8/n2BpK2/8/3k1p2/1Pppp3/8/3Q4 w - - 0 1)

Murarasu, Ion

Scacchi e Scienze Applicate, 1988

B2n1N2/8/n2BpK2/8/3k1p2/1Pppp3/8/3Q4

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Be5#
    • 1...Sf7
      • 2.Sxe6#
    • 1...c2
      • 2.Qa1#
    • 1...e2
      • 2.Qg1#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qe4#
        • 2.Qxf4#
      • 1...d2
        • 2.Qe4#
      • 1...Sc5
        • 2.Be5#
      • 1...Sc6
        • 2.Sxe6#
      • 1...Sb7
        • 2.Sxe6#
      • 1...e5
        • 2.Qe4#
        • 2.Qd5#
      • 1...c2!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4#
      • 1...c2
        • 2.Qa1#
      • 1...Sc5
        • 2.Be5#
      • 1...Sc6
        • 2.Sxe6#
      • 1...Sb7
        • 2.Sxe6#
      • 1...f3
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);SBLOCK::B(C)
    • S(h);N_GUARD::S(F),XP(g)
    • P(a);OGATEB::QAB(A)
    • P(c);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(A)
        • S(f);SBLOCK::B(C)
        • S(h);N_GUARD::S(F),XP(g)
      • Refutation
        • P(a);
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAR1(A)
    • Vars
      • P(a);OGATEB::QAB(A)
      • S(f);SBLOCK::B(C)
      • S(h);N_GUARD::S(F),XP(g)
      • P(e);OGATEB::QAR(A)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).